Honestly, there isn't much they can do, which is also the problem with tactical air forces that focus on air superiority.Pakistan is severely outmatched in any naval skirmish. The most it has is some Chinese C-400AKG missiles. There's a chance that Indians begin prodding in that arena if or when Pakistan retaliates in their mainland.
What can Pakistan do?
CM-400AKG is more to prevent the Indian Navy from entering territorial waters. Far from enough for massive ground strikes, unless it is to accurately hit key assets such as airports.